Lap desk



FIG. 1 is a top perspective view of a lap desk showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top perspective view thereof in a first open position;

FIG. 9 is a bottom perspective view thereof in a first open position;

FIG. 10 is a top perspective view thereof in a second open position; and,

FIG. 11 is a bottom perspective view thereof in a second open position.

The dashed broken lines show portions of the lap desk that form no part of the claimed design.

The dot-dash broken lines represent an unclaimed boundary line and form no part of the claimed design. 

CLAIM The ornamental design for a lap desk, as shown and described. 